Answer:
137.1
Step-by-step explanation:
Density is mass/volume so, 481.3/3.51 equals 137.1
137.12
Density = mass/volume
Density = 3.51
Mass = 481.3
Thus: 481.3/3.51 = 137.122507123
Answer: depending on the size of the room and what kind of bus
y=81
x=9 and y=81
y-70=11 (add 70 onto 11)
Answer: 576 for both